Wood-heel-turning machine



Jan. 29, 1929.

V A. A. MCCANN ET AL woon HEEL TURNING MACHINE 2 Sheets-Sheet l FiledNov. 9, 1925 Jan. 29, 1929.

A. A. MCCANN ET AL WOOD HEEL TURNING MACHINE 2 Sheets-Sheet 2 Filed Nov.9, 192,5

Cil

Patented Jan. 29, 1929.

YUNITED STATES PATENT OFFICE.

ARTHUR A. -MCCANN AND CHARLES STOTZ, OF ST. LOUIS, MISSOURI, ASSIGNORSTO DIAMOND WOOD HEEL 6b MFG. COMPANY, OF ST. LOUIS, MISSOURI, A.CORPORATION OF MISSOURI.

WOOD-HEEL-TURNING MACHINE.

implicationv led November 9, 1923. Serial No. 673,674.

This invention relates to machines for shaping wooden heels.

In the process of shaping wooden heels.` the heel blank, which usuallyhas the breast portion already formed, is clamped in a support or jackand presented to a rotating' cutter. The jack is moved with respect tothe cutter and is guided during such movement in such a way as to givethe heel the proper contour. In certain types of machines each side ofthe heel is presented to the cutter separately in successiveojlierations. It `is important in forming wooden heels and particularlyin the case of heels for womens shoes, where the top is comparatively7small, that both sides be formed alike so that the finished heel will betruly symmetrical.

In the types of machines at present in use, the guides which determinethe movement oit the jack in shaping` the heel must be carefully formedso as to insure the saine movement for shaping both sides in order thatthe heel may be symmetrical. This requires that before the machine canbe put into productive operation the guides will require a considerableamount of liling or grinding so as to shape them in the desired manner.

One of provide a heel forming machine which may be adjustedindependently for forming the two sides of the heel so as to insurecutting;` the heel symmetrically on both sides.

Another object of this invention is to provide such a machine in whichthe guides controlling the jack may be adjusted both with respect to thetotal movement of the jack and also .separately with respect to eachhall' movement so as to orm symn'ietrical heels.

Further objects will appear from the detail description taken inconnection with the accompanying drawings, in which:

Figure 1 is a plan view ol a heel forming machine embodying thisinvention;

Figure 2 is a front elevation of the same;

Figure 3 is a section on line 3-3, Figure 1; and

Figures 4t and 5 are outlines showing symmetrical and unsyn'imetricalheels.

Referring.;v to the accompanying drawings, 1 designates a frame uponwhich the machine is mounted and which may carry a table or trays or thelike for holding a supply of unfinished and finished heels, the operatordrawing on the supply ot unfinished heels and returning finished heelsto their proper i arm 12.

the objects of this invention is to` tray. This trame may also carry thedriving, motors tor the cutters. These motors are not shown on thedrawings.

Nlounted on the frame 1 a plate 2 which carries the moving` parts of themachine. This4 plate has mounted thereon bearings 3 and d in which thespindles 5 ot the two cutters 6 are journalled. The spindles 5 are eachprovided with a pulley 'T adapted to accommodate a belt 8 suitablydriven from a suitable motor, not shown. The cutters 6 are thus drivenat a high speed and rotate on a vertical axis. The frame 2 also carriesbearings 9 and 10 which sup porta vertical spindle 11 upon which aswinging arm 12 is arranged to pivot. The arm 12 has mounted therein atthe extremity thereof a vertical rod 13 which adapted to slide androtatein the This-rod carries at its upper eX- tremity a support or jack 14provided with a suitable clamp 15 for holding the heel blank 16. The rod13 is provided at its lower end with an arm 17 rigidly connected theretowhich carries a horizontal roller 13'or a 'purpose which will behereinafter described. The support 1li is really pivoted at 19 on a head2O rigidly iixed to the upper end of' the rod '3.3. The support 14 alsocarries a roller 21 similar to t-he roller 18.

Mounted on theirame 2 near its lower end is a pair of side brackets 22ext-ending;.tor-y wardly from the plate 2 andinwardly toward eachoilier. The ends ot these bracl-ets are connected by a cross-bracket Q3on which are pivoted at 24 a pair out' guides 25. The Lguides exten dstraight across the iront of the machine opposite the cutters 6 and havecurved ends 2G beyond the cutters. The guides are symmetrical withrespect to their division point 270 opposite the middle of the machine.The outer ends 26 ot these guides are supported by adjustable links 2Tconnected at 23 'to the brackets Q2. The guides are supported by thepivot 211 and the links 27 and may be adjusted. by adj us.- int;` saidlinks', to any desired degree of inclination from iront to rear. Theseguides 25 are adapted to support and guide in its movement the roller 13on the lower end ot the rod 13.

Adjustably mounted on the plate 2 and above the brackets 22 is a similarpairof brackets Q9 connected by a cross-bracket 30 on which are pivotedat 31 a pair of upper guides 32. These upper guides are similar to thelguides 25 and are adjustably `supported at their ends by links 33adjustably connected to the bracket-s 29. These. guides 32 are alsodivided at their middle point 34 so as to be separately andindependently vadjusted. he upper guides 32 are adapted to support andguide in its movement the roller 21 on the heel blank support 14A. Thebrackets 29 have a slotted connection 35 with the. plate 2 so that theymay be adjusted for elevation.

The roller 18 resting' on the guides 25 supports the rod 13 at anelevation determined by the `position ofthe roller 18 on the guides.

vThis determines the elevation of the lheel vblank 16 with respect tothe cutters 6. T he roller 21 resting on the guides 32 determines `theinclination of the."heel blank with respect to the cutters.

In the operation of this machine, the operator places the blank 16 inthesupport 14 and againsta suitable stop 36 and then clamps it in placeby means of the clamp 15. He then swings the handle 37 of the support 14to one side, at Vthe same time Swinging the arm 12 to the same sideuntil the roller 21 comes against a. `stop-screw 33 accurately fplacedonthe guide 32. At the same time the arm12 is moved toward the cutters 6on that side until the guide-plate 39 on the head 20 coinesagainst astop Ll0 mounted in front of the bearing 4. Each bearing 4 is providedwith such a stop Zl0 and the guide-plate 39 which contacts therewith isformed so as to give the heel base its proper outline when the `holderle is rotated so as to carry the heel blank past the cutter. When theoperator has moved the blank holder as described so that the guide plate39 contacts with the stop 40,

the he-el blank will be brought against the cut` ter 6 `so as to causethe cutter to form the side of the heel adjacent the breast. The handle3'? is then swung forwardly, keeping the guide-plate 39 in contact withthe stop 110,

until the handle 37 stands substantially perpendicular to the plate 2.During this movementI `theblank will be guided by the guideplate 39 andthe guides 25 and 32, all in com* bin-ation, so as to form one side ofthe heel up to the middle of the back thereof. rlhe operator then movesthe blank out of engagement vwith that cutter and swings the holdertothe opposite side of themachine so as to engage the other cutter in amanner similar to that described for the first cutter. By a similarmovement of the'handle 37 from the eX- tremeside position to its forwardposition perpendicular to the plate 2,`the other side of the heel is nowformed. By these two operations the forming of the heel is completed.

As pointedoutpreviously it is important to Vhave the finished heelsymmetrical. By independently adjusting the inclination of eachoftheguides 25 and each ofthe guides 32 and providing in` combinationtherewith cutters 6 of a .suitable form, a heel of substantially anydesired con-tour can be lformed. Since, however, the formation 1scarried out 1n two steps, 1t is liable to occur that the movements ofthe 'heelb'l ank in Vforming the tivo sides are Inotez;- acltly 'alike"and if this 1s the case 'the finished.

heel will not be symmetrical. Tn accordance with this invention themovements of the blank in forming the two halves may be. adjustedindependently of each other -so that the twohalves may be formed exactlyalike.

1t will be evident that in accordance with this invention provision ismade notonly-for varyingthe shape ofthe heel by adjusting the upper andlower guides but also for insuring the formation of a symmetrical heelby adjustably guiding theY blank support so `as to regulateindependently the cuts taken from the two halves of the blank. The pathofthe blank support is thus adjusted so as to `balance. the cuts on theVtwo halvesand make the heel symmetrical. Since eachguidedoes its shareindetermining the shape of the heel on that side and the "guides may beadjusted lso as 4to control the cuts on each side independently,Asymn'ietrically formed ysides for the heel are insured and at the sametime, since the two guides of each pair `n'ierge at the middie, anaccurate joining of the two formed surfaces at the'middle of the backofthe heel is insu-red. j

The'pivots 24 and 31 are removed forwardly from the cutters while theadjustable links 27 and are arranged to adjust the elevation of therearward ends of the guides. A compound adjustment is thu'sprovided bymeans of which practical-ly any shaped heel may be formed'andformedsymmetrically.

In the machines at presentin use in which the upper and lower guides arenot separated into two independently adjustable halves, lit oftenhappens thatan lunsymmetrical heel is formed having a shape somewhat asindi- 'cated'in Figure 5. ln such acaso it requires a great deal offiling and manipulation of the guides to correct the difficulty. lnaccordance with this invention on the other hand, adjustment of one sideor the other of one of the guides may be made independently of .allother a'djustn'lents until a symmetrical heel is obtained as indicatedin Figure el. l/Vhat has often proved in the past to be an almostinsurmountable difliculty in the use of this type ofmachine is thuseliminated by rthis invention. n j

It is obvious that various changes may be ina-de lin details ofconstruction without depart-ing from the spirit of this invention; itis, therefore, to be understood that this intails shown and described. j

Having thus describedthe invention, ywhat is claimed is: Y l l,

1. In a machine of the character described, the combination withcuttingmeans of a heel support, mea-ns for mounting said support 'vention isnot to be limited to the specific defor movement with respect to saidcutting means, guides for said support adapted to respectively determinethe shape of the two halves of the heel, and means tor independentlyadjusting said guides.

2. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support for movementwith respect to said cutting means, guides for said support adapted torespectively determine the shape of the two halves of the heel, andmeans for adjusting said guides adapted to regulate the cuts taken fromthe two halves of the heel.

3. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support for movementwith respect to said cutting means, and guides adapted to tip saidsupport in order to regulate independently the cuts taken from the twohalves of the heel.

4. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support for movementwith respect to said cutting means, guides a-dapted to tip said supportduring its movement, and means 'for independently adjusting said guides.

5. In a machine of the character' described, the combination withcutting means, of a heel support, means for mounting said support formovement with respect to said cutting means, and a guide for saidsupport pivoted on an axis adjacent its forward e-dge, and means foradjusting said guide.

6. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support for movementwith respect to said cutting means, guides for said support pivoted onan axis removed from said cut-ting means, and means for independentlyadjustingsaid guides.

7. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support vtor movementwith respect to said cutting means, sectional guides adapted to controlthe movement or' said support, and means for independently adjustingsaid sections.

8. In a machine of the character described, the combination with cuttingmeans, of a heel support, means for mounting said support for movementwith respect to said cutting means, a guide composed of sections merginginto one another and adapted to control the movement of said support,and means for independently adjusting said sections.

9. In a machine of the character described, the combination withcutt-ing means, of a heel support, means `for mounting said support formovement with respect to said cutting means, guides for eti'ectingcompound adjustment of said support, and means for adjusting said guidesin order to regulate the cuts taken from the two halves of the heel.

10. In a machine of the character described, the combination withcutting means, or a heel support, means for mounting said support formovem-ent with respect to said cutting means, guides for elevating saidsupport, guides for tipping said support, and means for adjusting saidguides in order to regulate the cuts taken from the two halves of theheel.

l1. In a machine of the character described, the combination withcutting means, of a heel support, means for mounting said support formovement with respect to said cutting means, guides, each composed ofsections, or eiecting compound adjustment of said support, and means foradjusting said sections.

12. In a machine of the character described, the combination withcutting means, of a heel support, means for mounting said support formovement with respect to said cutting means, a sectional gui-d-e forelevating said support, a sectional guide for tipping said support, andmeans for adjusting said sections.

In testimony whereof we aiiix our signatures this 5th day of September,1923.

ARTHUR A. MCCANN. CHARLES STOTZ.

